I have seen similar posts, but am unsure as to whether this is the same problem and I do not want to perform the wrong procedure.
I am running Internet Security 2010 on 3 machines. Installed about a year ago. No problems noted until a couple of weeks ago. The problem machine is running Windows 7, 64 bit, 6.1.7600. Browser is IE 9, 9.0.8112.16421, update version: RTM KB982861.
Whenever I try to launch Internet Security from the task bar, nothing happens. Double clicking on the desktop icon brings up a blank white rectangle about the size and position of the expected application window. Moving the pointer around the rectangle does nothing. The Mcafee icon appears in the application bar. I can right click on the icon and close the white rectangle.
Looking the the Task Manager, I see that mcagent.exe is running, consuming about 2356K of memory. Bringing up the blank white rectangle increases the memory used to 5684K. These numbers vary.
I first noticed this a week or two ago. I used System Restore to go back to a point previous to a shown Mcafee update. The application then launched normally. The white rectangle showed back up sometime since, noticed yesterday. Per one of the posts, yesterday I downloaded and ran ARO 2011. I also reset IE 9. No noticeable affect on the white rectangle.
Two questions. First the obvious one is how to resolve the problem? I cannot monitior the antivirus or run scans. Second, am I protected in the meantime?